RHEL 4 or 5 VM in RHEL 6 KVM environment has very slow network performance
Issue
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The network speed / performance of a RHEL 4 or 5 VM using kvm/libvirt is lower than expected.
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A kickstart of a RHEL 4.6 guest on RHEL 6.0 KVM suffers from very very slow network performance during the Anaconda install. The same guest works fine with RHEL 5 and RHEL 6, and it is definitely network rather as the package downloads take ages and the package installs are normal speed.
Environment
- Red Hat Enterprise Linux (RHEL) 5 or 6 KVM Virtualization host
- Red Hat Enterprise Linux 4 VM
- Red Hat Enterprise Linux 5 prior to update 4 VM
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